
Mark M. answered 11/16/17
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Mathematics Teacher - NCLB Highly Qualified
-2a + 8 + a - 3 = 2 - 2a - a + 3
-a + 5 = 5 - 3a combine like terms
2a + 5 = 5 add 3a to both sides
2a = 0 subtract 5 from both sides
a = 0 divide both sides by 2